Machine for obtaining the register of the etchings for multicolor intaglio printing cylinders



Nov. 20, 1928. 1,692,636

A. DULTGEN ET AL MACHINE FOR OBTAINING THE REGISTER OF THE ETCHINGS FOR MULTICOLOR INTAGLIO PRINTING CYLINDERS Filed Dec. 8, 1925 6 Sheets-Sheet 1 9 O) In v /52 v r 1 M8 INVENTORS 1717 11111 flull yen andflllovll "@135. 7 fiwm ATTORNEY Nov. 20, 1928.

2 3 a 2 9 9 no r 1 W t e N 6 M h 8 M E ED N EI HL Y C w L G A. DULTGEN ET A MACHINE FOR OBTAINING THE REGIST FOR MULTICOLOR LYENTAGLIO PRIN Fil'ed Dec. 8, 1925 INVENTORS flrl lzur Dull yen and Mogul: Wm.

ATTORNEY v Nov. 20, 19280 1,692,636 A DULTGEN ET AL MACHINE FOR OBTAINING THE REGISTER OF THE ETGHINGS FOR MULTICOLOR INTAGLIO PRINTING CYLINDERS Filed Dec. 8, 1925 6 Sheets-Sheet 3 INVENTORS flrl hun llull and [M0121]! M Nov. 20, 1928.

A. DULTGEN ET AL MACHINE FOR OBTAINING THE REGISTER OF THE ETCHINGS FOR MULTICOLOR INTAGLIO PRINTING CYLINDERS 6 Sheets-Sheet 4 Filed Dec. 1925 INVENTORS ATTORNEY Nov. 20, 1928. 1,692,636

A. DULTGEN ET AL -v MACHINE FOR OBTAINING THE REGISTER OF THE ETCHINGS FOR MULTICOLOR INTAGLIO PRINTING CYLINDERS Filed Dec. 8, 1925 6 Sheets-Sheet 5 INVENTORS flrlihur flullfyen and M09111: Weiss.

4 ATTORNEY Nov. 20, 1928. 1,692,636

A. DULTGEN ET AL MACHINE FOR OBTAINING THE REGISTER OF THE ETCHINGS FOR MULTICOLOR INTAGLIO PRINTING CYLINDERS Filed Deg. 8, 1925 6 Sheets-Sheet 6 INVENTORS ATTORNEY Patented. Nov. 20, 1928.

UNITED S'T r s' PATENT OFFICE.

A BTHUR DULTGEN, OF NEW YORK, AND ADOLCPH WEISS, F BROOKLYN, NEW YORK.

MACHINE FOR OBTAINING THE REGISTER or THE E'rcIrInes non MULTICOLOR IIITAeLIo- PRINTING CYLINDERS.

Application filed December This invention relates to a machine forobtaining-the register of the etchings for multicolor intaglioprinting cylinders.

In the present state of the art the machines used for producing register in etchings for multicolor intaglio printing cylinders, are dependent on manual skill, resulting very often in deficient results. In the machines heretofore used if only one of the etchings on one 1 cylinder is located out of register, with the coacting etchings on the other cylinders, the error is only discovered after the cylinder has been etched and placed in the printing machine, and no means are provided for check- 1 ing up the locations of the etchings until after the operation of etching, necessitating the remaking of the whole cylinder. This will cause considerable financial loss and delay. I In this art it is known that carbon tissue, as used for producing etchings on intaglio printing cylinders, tends to distort, due to the influence of atmospheric conditions, and causes the etchings produced to be out of register, even if the carbon tissue has been accurately located on the register marks of the cylinder. The amount of distortion is aggravated with the increase in size of the carbon tissue used.

The'object of this invention is the elimination of human skill, in correctly locating the register marks on the various color cylinders used. for intaglio multicolor printing, and substituting therefor mechanical means. The 1 second object of the invention-is the elimination of the risk of misplacing the register marks on the printing cylinders. The third object of the invention is the provision of means to check up the accuracy of the transfer of the register marks, on what we term a key color cylinder, to a plurality of receiving cylinders before attaching the. carbon tissues to the latter. The fourth object of the invention provides means for correcting the location of a carbon tissue on a receiving cylinder, before etching. The fifth object of the invention provides means. for'using carbon tissues of small sizes to reduce the distortions, due to atmospheric influences. The sixth object of the invention has for its object the reduction of the time required. to produce multicolor intaglio printing cylinders, allowing quick, easy and sure means oftransferring register marks. and locating and developing carbon tissues on the printing cylinders. The seventh 8, 1925 Serial NO. 74,034.

object of the invention is the production of means to etch flat tints on a color cylinder, from border lines transferred from an etched cylinder, using only a screened carbon tissue, saving all photographic labor and material,

' and to determine the correct position for the -same on the printing cylinder. The eighth object of the invention is the production of means to etch pictures on a color cylinder from a printed transfer, obtained from an etched key color cylinder, using the ink film obtained by the transfer, as an acid resist, using only a screened carbon tissue, saving thereby all photographic labor, and material, and also locating the correct position of the picture on the printing cylinder. The ninth object of the invention is the production of automatic means, to indicate inaccuracies in the size of the printing cylinders, which if not detected will result in trouble, during the printing operation and throw the pictures out of register, requiring the remarking of the printing cylinder, causing a waste of time, labor and material, in the preparation and etching of the cylinder and cause a delay of time in the printing operation.

' In the accompanying drawings Fig. 1 represents an outside front elevation of an exemplification of the multicolor registering machine; Fig. 2 shows .an outside rear elevation of the machine; Fig. 3 indicates a top plan view of the'machine; Fig. 4 represents a section of Fig. 3 on the line 4, 4; Fig. 5 shows a section of Fig. 1 on the line 5, 5; Fig.- 6 indicates a section of Fig. 1 on the line 6, 6; Fig. 7 represents an elevation of some details; Fig. 8 is a top plan view of Fig. 7; Fig. 9 represents a left hand side view of a fragmentary portion of Fig. 3; Fig. 10 indicates a left hand side View of Fig.9; Fig. 11 represents a top plan view of Fig. 9; Fig. 12 shows an enlarged partial section of Fig-1 on the line 12, 12; Fig. 13 indicates a section of Fig. 12 on the line 13, 13.

The multicolor registering machine comprises the main front frame 20 and the main. rear frame 21. which are tied together by the rods 22 and 23. Each of the said frames has extending therefrom a projection 25. On the inner face of each of the said frames 20 and 21 are formed the guide strips 26, which extend up to the upper ends of the projections 25. Corresponding strengthening ribs 27 extend from the outer faces of the frames 20 and 21. Each of the said frames has formed therewith the top flanges 30 which incline toward their outer ends, and terminate in the journal bearings 31 and 32. Each of the top flanges 30 has formed therein the concaved clearance depressions 33. Flanges 34 are formed with the bottom ends of the frames 20 and 21. Side flanges 35 of each frame extend between the ends of the flanges 34 and the journal bearings 31 and 32.

From the inner face of each of the frames 2O and 21 extend the guide strips 38, which are provided with the detachable guide plates 39. v

The top'portion of the frame 20 has extending therethrough two pairs of similar journal pins 44, which support the rollers 46. Ball earings may be'provided for the rollers 46. V A shaft has'its ends journaled in the frames 20 and 21. Similar arms 51 and 52 have one end each fastened to the shaft 50 on the outer face of each of the frames 20 and, 21.- To the upper end of the arm 51 is pinned one end of the link 53, by means of the pin 54. A similar pin55 extends from the upper end of the arm 52. A journal pin 56 extends from the frame'20 and has supported thereon one end of the handle 57. The

and 21. At the upper end of each of the arms 59 is formed an elongated housing 60. Two pairs of pins 61, extend from the inside face of each of the frames 20 and 21, each pair being disposed equidistant from the vertical plane extending through the longitudinal center of the machine. Rollers 68 are supported on the pins 61 and may be provided with ball bearings. Straps 69 have their ends supported on the pins 61. Lifting bars 70 are guided between the ,rollers 68 and each has formed in its upper edge the recess 71 and retaining heel 72. One end of each-bar 70 has extending therethrough a pin 73 on which is supported a roller 74, which latter may be provided with ball bearings. The roller 74 is located in the elongated housing 60. On the pins 54 and 55 "are each supported the rollers 78 which may be provided with ball bearings.

A shaft 82 is journaled in bearings formed in the frames 20 and 21. A pulley 83 is fastened to the shaft 82. A pairof cam discs 86 each with the cam projection 87 are fastened to the shaft 82. A spur gear 88 is also fastened to the shaft 82. A journal pin 90 extends from the frame 20 and has journaled thereon the pinion 91. The pinion 91 meshes with the spur gear 88. A pin 92 extends from the frame 21 and has journaled thereon the pinion 93.- A hand wheel 93 is fastened to the pinion 93. shaft 94 is journaled in the frames 20and 21 and has astened thereto the pinion 95. Thepinion 91 meshes with the pinion 95. A pinion 96 on the shaft 94 meshes with the pinion 93.

The ratchet wheel 97 is fastened to the shaft 94 adjacent to the pinion 95 and a pin 98 extends from each end of the shaft 94. A pin 105 extends from the frame 20 and has sleeved thereon the pawl with its tooth 107, and its counterweight 108. The tooth 107 is adapted to lock with the teeth of the ratchet wheel 97. A detachable operating handle .109 is indicated with its hub end 110, which is adapted to. coact with the pin 98 on the shaft 94.

' An adjustable bearing frame is designated in its entirety by the numeral 115. The

frame 115 has formed in its vertical axial center line the similar bearings 116 and 117, by means of which it is slidably supported on the rods 22 and 23. A screw 120 is indicated with the shank 121 and is in threaded engagement with the frame 115, which shank 121 is journaled in a bearing in the end frame 21. An operating hand wheel 122 is fastened to the shank 121 adjacent to the outer face of the end frame 21. Two pairs of pins 126 are fastened to and extend through the frame 115. On each of the pins 126 is journaled a roller 128, which may be provided with ball bearings. A ,pin 132 is supported in the frame 115, and in turn has supported thereon the lug 133 of the loading bar 135. A pair of journal lugs 136 extend from the lower face of the loading bar 135, and have fastened thereto the journal pin 137 on which is journaled the roller 138, for which latter ball bearings may be provided. A pin 140 similar to 132 is fastened to and extends from the .frame 115. A lug 141 similar to 133 is supported on the pin 140 and is integral with the second loading bar 142, oppositely-positioned to and similar to the loading bar 135. A pair of journal lugs 143 similar to 136 expin 144. On the latter is journaled the roller 145 similar to 138. A pair of loading bars similar to those already described, are shown 149", 149 and 149. in each of the loading bars.

Similar cam shafts 150 and 151 are journaled in the frames 20 and 21. Cams 152 and 153 are respectively fastened to one end of the said cam shafts, .outside of the frame 20.

Removable stop pins 149 are provided for openings 149",-

- tend from thedower face of the loading bar 142, and have fastened thereto the journal Similar splines 154 are provided for each of;

the cam shafts and 151. Cams 155 and 156 similar to the cams 152' and 153, are sleeved adjacent to the other ends of said tened to each of the shafts 150 and 151 and engage the splines 154. The cams 152 and 155 are similarly positioned to their shaft 150 and the cams 153 and '156 are similarly. positioned to their shaft 151. i

To the outer face of the frame 21 are fastened a pair of brackets 158 each with the journal bearing 159. I The shafts 150 and 151 extend through the brackets 158 and each has fastened thereto the worm wheel 160. A shaft 162 is journaled in each of the bearings 159 and has fastened thereto a worm 163 in mesh with the worm wheel 160. A worm wheel 164 is fastened to each of the shafts 162. A pair of journal pins 165 are journaled in the frame 21 and each has fastened thereto the worm 166, which is in mesh with its adjacent worm wheel 164. A hand wheel 167 is faspins 165. A key color cylinder 172 with the metallic sleeve 17 2 is fastened to the shaft 173, having the. journal ends 17 4. A pulley 17 5 havpairs of rollers 46 and 128.

ing a tapered opening through its hub is provided for one of the journal ends 17 4.

A tapered bushing of which there'is a pair indicated with the members 176 having the threaded. ends 177 and which are partly separated by the slots 178. A slot- 179 extends through the members 17 6 and the ends 177. Lock nuts 181 are provided for said threaded ends 177. The bushings having the members 176 are located within the ta ered openings of the pulleys 175 and 188 to e described to clamp the said pulleys in place on their j our-- nal ends and which latter can'therefore vary in diameter. The journal end 174 adjacent to the main frame 20 is supported on the rollers 46, and the other journal end 174 is supported on the rollers 128.

A receiving cylinder is indicated at 185 with its sleeve 185, respectively equal in diameter to 172 and '17 2 The cylinder 185 is fastened to the shaft 186 having the journal ends 187, which shaft and ends are similar to 17 3 and 174. A pulley 188 equal in diameter to 17 5 is secured in place by one of the bushings having the members 176. One of the journal ends 187 is supported in its adjacent A pin 192 extends from the end frame 20 and has fulcrumed thereon the foot lever 193, which at its front end has formed therewith the foot pedal 194 and atits other end the lever 193. An endless belt 208 connects the pulleys 83,175, 188, and the rollers 196, 198. The pin 56.11as also fulcrumed thereon the ratchet pawl with the arms 211 and 212. Y The arm 211 has formed therewith the counterweight 213, and the arm 212 has formed therewith the ratchet teeth 215, which engage with the tooth 205. A foot pedal 216 is formed' with the said ratchet pawl.

In the guide strips 26 are guided the pair of slide bars 220 having the elongated openings 222 and 223. At the lower end of each of said bars 220 and at their inner faces are journaled the rollers 225. Between the openings 222 and 223 of said bars and adjacent to their inner faces are -j ournazled the rollers 226. To the upper end of each of the" slide bars 220 are adj ustably connected the journal bearing housings 227. Each of the housings 227 has a shoulder 228 and a projecting lip 229. An elongated opening 230 is formed in each of the lips 229. The shoulders 228 of said housings bear on the top ends of their slide bars 220, and a bolt 231 extends from each of the slide bars through the openings 230, and adjustably clamp the said housings 227 to their slide bars 220. In each of the housings 227 is formed the guide opening 235 for the adjustable journal bearing blocks 236.

In the openings in each of the latter are supported a pair of journal bearings" with their ball bearing cages 237. A cap 238 is engages a corresponding opening in the top end of thebearing block 231.

A cam shaft-246 is journaled in the frames 20 and 21. A pair of cams 247 are fastened to theshaft 246 and coact with the rollers 225 of the slide bars 220. A pin 248 projects outwardly from the end frame 20 and has journaled thereon asprocket chain wheel 249. An arm 250 has one end fastened to the shaft 249, and an operating handle 251 extends from its swinging end. A pin 252 extends outwardly from the frame 20 and has journaled thereon the sprocket chain wheel 253. A pin 254 extends outwardlyfrom the end frame 20 and wheel 255. A sprocket chain wheel 256-is fastened to the cam. shaft 246. A sprocket chain 260 contacts with wheels 249, 253, 255 and 256. A shaft 261 has its ends j ournaled in the roller bearings having the cages 237. A transfer drum 262 is fastened-to the shaft 261"and is covered with the sleeve 263 of pliable material preferably rubber.

A pair of slide -bars 266are slidably supported in the guide strips 38 of the frames 20 and 21. Openings 267, 268, 269 and 270 are formed in each of the slide bars 266.

To-the upper end of eaclnof" the slide bars 266 is fastened the brac 272. A plate 273 with the upturned lifi" 274' is fastened to the top face of each bracket 272. Longi- X tudinal plates 275 are fsupported on the plates 27 3. Guide strips 27 up from the plates 273 and slidably support the slide extend up from the slide blocks 27 9. Adjusting screws 282 extend through the lips'27fl and are in'threaded engagement with the lugs 281.

An extension 293 with the journal bearings 294 and 295 is provided for ohe of the slide blocks 279 and has journaled therein the vertical shaft 296, with the squared end 296. A worm 297 is provided for the shaft 296 and is located between the journal bearings 294 and 295. A- shaft 300 is'journaled in the journal bearings 280 of the slide blocks 279. To one end of the shaft 300 is fastened the worm wheel 301, which meshes with the worm 297. Three si'milar supporting bracke'ts 302 are fastened to the shaft 300. Arms 303 are formed with each of the brackets 302. A stiffening shaft 304 connects the brackets 302. A doctor blade support 305 has formed therewith the depending lip 306 and is supported on each of the arms .303. Hook arms 307 extend from each of the brackets 302 and from which may be suspended weights. A doctor blade 308 is supported on the support 305. A stiffening plate 309 bears on the doctor blade 308. A cap plate 310 bears on the stiffening plate 309 and bolts 311 clamp the said cap plate 310, stiffening plate 309, doctor blade 308 and the support 305 together. N

1 An ink tank 315 is supported on the longitudinal plates 275. A shaft 316 is journaled in the frames 20 and 21 and has fastened thereto a pair of similar pinions 317. The shaft 316 extends through the openings 267 of the slide bars 266. Similar racks 318 are fastened to the slide bars 266 and mesh with the pinions 317. At one end of the shaft 316 adjacent to the outer face of the frame 21 is fastened the sprocket chain wheel 319. A

pin 320 is fastened in the end frame 21 and extends from its outer face. A spur gear 321 is j ournaled on the pin 320. A sprocket chain wheel 322 is fastened to the pinion 321. A sprocket chain 323 connects the wheels 319 and 322. A pin 324 extends from the end frame 21. A handwheel 325 is fastened to the pinion 32 1 and both are sleeved on the pin 324. The pinion 324 v meshes with the gear 321. A pin-326 extends from the. frame 21 and has sleeved thereon the pawl 327 which engages the teeth of the spur gear 321.

The steps used in this invention to produce a set of multicolor intaglio cylinders are as follows. a

Colored pictures or photographs are photographically reproduced and color separation negatives are made of them, in accordance with the number of colors to be'printed.

Register marks are placed on the original copies which are transferred while making the color separations. These register marks are used to locate the .carbon tissues made from the color separations, to be described, on the printing cylinders. Next photographic positives are made from the color separation negatives with their register marks. The key color or black positives are now mounted on a glass plate over a layout sheet, forming an arrangementflof the sheet to be printed. The mounted positives are next exposed to carbon tissues and are printed thereon. The

carbon tissues are afterward exposed to a screen, by which the screen lines are printed thereon. Next the carbon tissues are located upon the key color cylinder conforming with the arrangement of the layout sheet, and attached to the cylinder. The carbon tissues are next developed on the cylinder and the latter is then etched. The key color cylinder is now ready for use. The steps up to this point follow about the usual method used in the previous state of the art. The operator now locates the key color cylinder intothe trans fer machine, and the configurations and register marks are transferred to the blank receiving cylinder of a diameter equal to that of the key color cfylinder, so that the regis-- ter marks and con gurations of the key color cylinder are printed on the receiving cylinder, in a manner to be hereinafter described. The register marks or the outlines or the borders of some of the configurations which have been transferred, are now marked with light scriber marks on the surface of the receiving cylinder, and the latter is next cleaned of ink. The same operation is repeated for each receiving cylinder. A new set of carbon tissues is made from the color separation positives for each color to be printed for each cylinder in the usual manner. The register marks on the carbon tissues are now transferred from the face to the backs of the said carbon tissues, by means of fine pinholes along the vertical and horizontal register lines and through their intersection. The pin holes appearing on the backs of the carbon timues are next connected by fine pencil lines which will be identical in position with those on the .front face of the carbon tissues. The corners of the carbon tissues are cutin inclined lines passing through the apex of each corner of the register marks, which latter are formed with lines preferably at right angles to each other, leaving only a part of said lines.

To compensate for these differences, .it is necessary to locate the carbon tissues on the receiving cylinders, with their register marks spaced from the register marks on the receiving cylinders to an, amount determined by experience. If during the preparation of the ,receiving cylinders in the usual way. Then "inspection is made of the register of the'regls ter marks of the carbon tissues and the register marks on the receiving cylinders. Should the marks of any of the carbon tissues be found not to be in register with the correspending marks on the receiving cylinderg the said section of the receiving cylinder with the misplaced carbon tissue is now covered with an acid resisting substance, preyious to the etching of the remaining part 'of the cylinder, and corrected afterwards.

In this manner the necessity of the remaking of the whole receiving cylinder is eliminated. While this method of preparing and locating I carbon tissues has been found very practical itmay be-possible to accomplish the same result in other wayswithout deviating from the spirit'of the invention and is not to be considered a limitation thereof. The receiving cylinders are now et ched in the usual manner, and their scriber marks are removed.

The transferred impressions from the key color cylinder to the receiving cylinders, provide means for making an etching of a flat tint,'without the necessity of making a color separation negative and positive therefor. This is accomplished by indicating the border lines of the surface to be etched in tint on the receiving cylinder, cleaning away the ink on the surface of. the said cylinder withl .in the border lines, which ink has been transferred from the key color cylinder; Next the cleaned surface on the receiving cylinder is covered wlth a screened carbon tissue and developed thereon. The marginal surface surrounding the area, enclosed by the border lines on said cylinder is next covered with an acid resisting substance, and then the cylinder is etched in the usual way. V

If a tone variety instead .of'a flattint is. to be made, the method will vary inso far, that the approximate position of the etching will be located on the receiving cylinder, and covered with a screened carbon tissue developed thereon, previous to making a transfer in the machine from the key color cylinder.

'While'making the transfer in the machine, the operator must take care that the transferred impression of the picture or other object to be etched in this manner, will come in' corresponding position with the carbon tissue developed on the receiving cylinder. The ink film obtained during the transfer will act as an acid resistant, and produce thereby a variety of tones during the etching operation.

. In making a transfer withthe machine, an impression is taken from the key color cylinder which is transferred to the receiving cylinder, by means of a transfer drum, the circumferential length of the impression on the receiving cylinder will equal the circumferential length of the etchings on the key color cylinder, and a short repeat of the .same. This repeat will be indicated on the receiving cylinder, by a heavier impression. The re? peat must be found in register with the starting point on the receiving cylinder. If this is found to be so, it will prove'that the circumferences of the key color and receiving cylinder are equal, and that the transfer operation is correct. Should the repeat however not registerwith thefsaid starting point, the cause may bean inequality between the cylinders or anerror in operating the machine. The error must be located and corrected before other steps are taken. In this manner a check is rovided to make the transfer fool proof, a so to check the sizes of the cylinders.

To operate the machine (see Figs. 2 and 4) the user first; lowers the ink tank 315,

by releasing the pawl 327, from the spur gear 321, and then turns the hand wheel 325, by virtue of which the shaft 316 is turned, and the pinions 317 coacting with the racks 318 lower the slide bars 266, and the ink tank 315 is jlowered. The latteristhen' locked in its lower position by the pawl 327.

Next the hand wheel 167, associated with the shaft 150, (see Figs. 2, 3 and 4) is turned,

which turns one ofthe pins 165, with its worm 166. The worni wheel 164 turns with the worm 166 turned. The latter through the worm wheel 160 t'urnsthe cam shaft 150 having the cams 152 and 155, until the latter are located in their lowest 'position as indicated in Fig. 2.

and thereby the 'worm 163 is Next the key color cylinder 172 is brought into proper positionby means of a hand truck, adjacent to the loading bars 135 and 146, with its shaft 172 above the said bars. A pair of the stoppins 149 are placed position on each loading bar 135, 146 at their outer ends in the openings 149*, 149' on opposite sides of thejournal ends 174: of the shaft 173 of the key color cylinder 172. Next thesaid hand wheel 167 is again turned tion, (see Fig. 4). Then the innermost of the placed stop pins 149 is placed-in the opento locate'the cams 152 and 155' in their high .position, bymeans of which the loading bars 135 and 146 are swung to a hprizontal p0si-' ing 149 at the other end of each of the loading bars 135 and 146. The journal ends 174 of the shaft 173 of the key color cylinder are rolled to and against the latter stop pin. The outermost of each pair of pins 149 1n the openings 149 in the bars135 and 146 are now located. in the opening 149 adjacent to the opposite side of the journal ends 174 of the key color cylinder. Next the outer ends of the loading bars 135 and'146 are lowered by means of the hand wheel 167, associated with the shaft 150, and thereby the journal ends 174 of the shaft 173 of the key color cylinder are seated upon the rollers 46 and 128. The pulley 175 is now fastened in place to! one of the journal ends 174 of the shaft 173 of the key color cylinder'adjacent to front frame 20. The operator by means of. the other hand wheel 167 associated with the' cam shaft 151, (see Figs. '1, 2, 3, 4)- locates the receiving cylinder 185, with the journal ends 187 of its shaft 186, upon the other rollers 46 and 128. Next the pulley 188 is fastened to the journal end 187 of the shaft 186, in line with the pulley 175 and adjacent to the frame 20. The ink tank 315 is now. raised to its proper position under the key color cylinder 172, to immerse a portion of the latter in the ink in the said tank. The doctor blade 308 is located withits end bearing'on the key color cylinder 172, by. turning the shaft 296. This turns the worm 297, .and

thereby the worm .wheel' 301 is turned and with it the shaft 300 is swung, which swings the doctor blade 308 in proper position.-

Weights may be suspended from the books 307, to nicely adjust the doctor blade 308 in contact with the key color cylinder 17 2. By means of the depending lip 306 surplus ink is returned to the ink tank 315. Next the key color cylinder 172 is turned by turning the pulley 17 5 for the preliminary inking of the key color cylinder 172, and the proper adjustment of the doctor blade, until a satisfactory scrape on the keycolor cylinder .is

obtained. The ink used is very slow dry-. 1ng.

The belt 208 is now located in place upon the pulleys 175, 188, 83, 196, and 198. The slide bars'220 are then lowered by turnlng the operating handle 251, (see Figs. 1 and3) which turns the sprocket chain wheel 249, and by means of the sprocket chain 260, the sprocket chain wheels 253, 255 and 256 are turned. By

this means the shaft 246. is turned, whereby the cams 247 are revolved to their lowest position. The slide bars 220 are now lowered from their high position as indicated in Figs. 1 and 2. The rollers-226 are lowered to the two. lifting bars 70. The key color cylinder is now again turned by means of the pulley 175 a number of times, to ink it, and is finally positioned so that the predetermined starting point which usually constitutes a marginal space in the print, is diametricallyopposite 194 and therebytightens the endless belt 208.

in place. When the operator bears on the foot pedal 194, the ratchet teeth 215 coact with the tooth 205 of the projection 204'on the arm211, which locks the foot lever 193 in its tensioned position. To release the foot lever 193 the operator bears on the foot pedal 216, and unlocks the tooth 205 from the ratchet teeth 215. The operator now moves the handle 57, (see Figs. 1 and 3) and through the link 53, the arms 51 and 59 move the lifting bars 70 in position, to seat the rollers 226 in the recesses 71.and under the retaining heel 72. This locates the transfer drum 262, in

contact with the key color cylinderi17 2 and the receiving cylinder'185. A final adjustwheels 240, through the intervention of the journal bearing blocks 236. The bolt 231 with-its elongated opening 230 allows the lateral alignment of the. said transfer drum 262.

The operator now turns the operating handle 109 (see Fig.1) which turns the shaft latter turns the pinion 91, which in turn rotates the spur gear 88 and thereby the endless belt 208 causes the pulley 83 to turn, and

'94, whereby the pinion 96 is turned. The

rotation of the pulleys 17 5 and 188 cause the key color cylinder 172 and the receiving cylinder 185 and the transfer cylinder to turn with the same circumferential speed.

The transferdriun 262 bearing equally on the two cylinders will be turned by its contact with the two cylinders '17 2 and185.

The key color cylinder 17 2 carries printing fluid in its etching which comprise the designto be reproduced, and. also the register marks. The ink from the key color cylinder is deposited on the transfer drum 262 and in turn is transferred to the receiving cylinder 185.

With the shaft 82, the discs 86 are turned and are timed, so that when the receiving cylinder 185has received a complete transfer and a partial repeat, the cam projections 87 'contact with the rollers 78, causing the arms 51, 52'and 59 to swing, and thereby move the lifting bars 7 0 horizontally. -Thereby the rollers 226 are raised out of the recesses 71 and the retaining heels 72, which raises the transfer drum 262 out of contact with the cylinders 172 and 185. The'operator next raises the transfer drum 262 in the position indicated in Fig.4. The operator then-bears on the foot pedal 216 to release the tension of the belt 208. Next the pulley 188 is removed lui ment for the drum 262 is inade with the hand 9 Y from the receiving cylinder 185. The loading bars 142 and 146 are raised, and the pins 149 are removed from the, inner portion of the said bars and one of them is located at the extreme outer end of ea h of said'bars. The receiving cylinder 185 1s now rolled onthe journal ends 187 of its shaft 186 toward the stop pins 149. located on the outer-ends of v the bars 142 and 146*. Next the other pins at the outer ends of the latter bars are located' in place. The loading bars 142 and 14:6 are now lowered until the receiving cylinder 185 has been relocated on its hand truck. I f If more than two colors are to be printed, other receiving cylinders are treated corresponding to the number of colors to be printed. l v

The adjustable bearing frame 115 which can be moved longitudinally, provides means to adapt the machine to various lengths of key color and receiving cylinders. The length of thetransfer drum must be equal to the length ofthe longest cylinder used. The adjustment of the journal bearing blocks 236 provides means to compensate for variations in the diameters of the key color and receiving cylinders. c

After each receiving cylinder is removed from the machine the transfer drum 262 is cleaned. The key color cylinder 172 is finally removed from the machine for use in the printing press (not shown) after all transfers have been made. v i The construction of the machine may be varied, so that the transfer drum 262, willnot simultaneously contact with the key color cylinder 172 and the receiving cylinder 185. In such a case the construction would be modified to the extent that the said transfer drum 262 would first contact with the said key color cylinder 172, and take an impression there from, and next said transfer drum would be moved to contact with the receiving cylinder 185, and transfer the impression thereto. The pulleys 175 and 188 and their coacting elements can be eliminated. The rotationsof' the key colorcylinder 172 can be transferred to the transfer drum 262 by rolling contact, and the receiving cylinder 185 can berotated by rolling contact with said drum, so that the said key color cylinder and receiving cylinder rotate in unison. In this case suitable provision is made to constitute the key color cylinder the driver.

Various modifications may be made in the invention and the present exemplification is to be taken as illustrative and not limitative thereof. a

Having described our invention what we desire to secure by Letters Patent and claim is: i

1. In a machine of the character described having an'etched' cylinder and a blank cylinder journaled therein, the combination of. a

transfer drum in rolling contact with said cylinders to transferan impression from the etched cylinder to the blank cylinder, and means to adjust the transfer drum to different position for cylinders of various diameters.

- 2. In a machine of the character described having an etched cylinder and a blank cylinder journaled therein the combination of a transfer in rolling contact with said cylinders to transferan impression from the etched cylinder to the blank cylinder, means to bring t-ively supported in said adjustable bearing 5,

frame, to compensate for-cylinders of different lengths.

4.v In a transfer machine of the character (described having, an etched cylinderanda blank cylinder rotatively supported therein,

the combination of loading bars hinged in the machine for lifting or lowering the cylinders thereof-to locate them in the machine or detach them therefrom.- a l r 5.- In a machine ofthe character described having a; key color cylinder and a receiving cylinder rotatively supported therein, the combination of slide barsguided in the machine, rollers ,journal'ed to said slide bars, lift--' ing bars adapted to support said rollers with the slide bars located in their lowered position, a cam shaft joufnaled in the machine,

to raise and lower said slide bars and a transfer drum adjustably journaled to said slide the combination of a'front frame and a rear cams fastened to said shaft, said cams adapted I frame, means to maintain said frames in t,

place, a bearing frame adjustably supported on said means, four pairs ,of rollers for the front frame one of each pair on opposite sides e of the frame, four pairs of similar rollers for the bearing frame, means to locate the bearing frame in different linear positions, a pair of loadingbars oppositelypositioned, pinned to said front frame, a pair of loading bars oppositely positioned, pinned to the bearing frame, means to support and swing to, said machine having a receiving cylinder with a shaft having journal ends adapted to roll on the other loading-bar of the front frame and the bearing frame and to be seated on the rollers connected to the front frame and bearing frame, a slide bar adj ustably supported in the front frame, a second slide bar adjustably supported in the rear frame, and a. transfer drum journaled to the slide bars adapted to contact with said cylinders.

7. In a machine of the character described I the combination of a front frame and a rear frame, a bearing frame adj ustably supported between said frames, rollers associated with the front frame, rollers associated with the bearing frame,apair of loadingbarsoppositely positioned pinnedto the front frame, a pair of loading bars oppositely positioned pinned to the bearing frame, means to support and swing the outer ends of the loading bars, said machine having a key color cylinder with a shaft having journal ends ada ted to roll on a loading bar of the front rame and a loading bar of the bearing frame and to be seated on the rollers associated therewith, said machine having a receiving cylinder with a shaft having journal endsadapted to roll on the other loading bars and to be seated on the rollers. associated therewith. a transfer drum adjustably supported in the machine and adapted to contact with the cylinders, means to simultaneously turn said cylinders, other means to lock said means in operative position and automatic means to space said transfer drum from said cylinders after a predetermined circumferential travel of the drum.

'8. In a machine of the character described having an etched cylinder and a blank cylinder journaled therein, the combination of a transfer drum adjustably journaled in the machine in rolling contact with both of said cylinders, means to simultaneously turn the cylinders, the drum simultaneouslyrotating with said cylinders by reason of its rolling contact therewith and means to space the transfer drum from the cylinders after a predetermined amountof rotation of the latter to produce a repeat on the blank cylinder.

9. In a machine of the characted described having an etched cylinder and a blank cylinder journaled therein, the combination of a, 

